printer connecting problems

I have the same printer and had the same problem.

This solved it for me:

1- Open the T-Mobile Gateway App on your phone

2- Select Network tab

3- Select your WiFi Network

4- Under WPA Version, change it from WPA/WPA2 to WPA2/WPA3

5- Click Save

6- On your printer go to Device Settings > LAN Settings > Wireless LAN Setup > Manual Connect

7- It will search and find your T-Mobile device > Select that T-Mobile device

8- It will now ask for the password > enter it and and the printer will connect*

*you may have to restart your printer and laptop/computer before it will print